Materials that are one-dimensional (1D) exhibit unique properties which cannot be found in 2D and 3D materials. Obviously, Carbon nanotube (CNT) and its variants are among the most significant 1D materials (e.g. SWCNT, MWCNT, etc.). The CNT materials are potentially effective additives to change the electrode characteristics of Li-ion batteries due to the requirement of electron conductivity. To comprehend the impact of these additives on the electrode behaviors and their origins, a comprehensive analytical assessment is mandatory. Charge-discharge data of the many cathode materials modified with CNT additives in various conditions and different labs are gathered from literature for this purpose. To evaluate the impact of the additives on performance, rate-capability, activating particle, and goodness of the activated particles, the results are applied to three type diagrams (ordinary, standardization, and normalization). These evaluations are novel, since, the resulted final conclusions cannot be derived without normalization/standardization of the data. This study gathered many data from literature and make comparison between them to shed light to understand the mechanisms and effectiveness of the additives. Our evaluations show that the effectiveness highly depends on the nature of electrode and synthesis method. Also, preparation parameters play roles in effectiveness of the additives.